{"payload":{"cwd":"/tmp","id":"fc-stdin","originator":"user"},"timestamp":"2024-01-01T10:00:00Z","type":"session_meta"}
{"payload":{"content":[{"text":"send input","type":"input_text"}],"role":"user"},"timestamp":"2024-01-01T10:00:01Z","type":"response_item"}
{"payload":{"arguments":{"chars":"yes\n","session_id":"sess-42"},"call_id":"call_test","name":"write_stdin","type":"function_call"},"timestamp":"2024-01-01T10:00:05Z","type":"response_item"}